259966665

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:988

約数の個数: 80

約数和(自身を含む): 538192512

約数和(自身を除く): 278225847

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 107, 135, 189, 315, 321, 405, 535, 567, 749, 857, 945, 963, 1605, 2247, 2571, 2835, 2889, 3745, 4285, 4815, 5999, 6741, 7713, 8667, 11235, 12855, 14445, 17997, 20223, 23139, 29995, 33705, 38565, 43335, 53991, 60669, 69417, 89985, 91699, 101115, 115695, 161973, 269955, 275097, 303345, 347085, 458495, 485919, 641893, 809865, 825291, 1375485, 1925679, 2429595, 2475873, 3209465, 4126455, 5777037, 7427619, 9628395, 12379365, 17331111, 28885185, 37138095, 51993333, 86655555, 259966665]

約数ペア:

[(1, 259966665), (3, 86655555), (5, 51993333), (7, 37138095), (9, 28885185), (15, 17331111), (21, 12379365), (27, 9628395), (35, 7427619), (45, 5777037), (63, 4126455), (81, 3209465), (105, 2475873), (107, 2429595), (135, 1925679), (189, 1375485), (315, 825291), (321, 809865), (405, 641893), (535, 485919), (567, 458495), (749, 347085), (857, 303345), (945, 275097), (963, 269955), (1605, 161973), (2247, 115695), (2571, 101115), (2835, 91699), (2889, 89985), (3745, 69417), (4285, 60669), (4815, 53991), (5999, 43335), (6741, 38565), (7713, 33705), (8667, 29995), (11235, 23139), (12855, 20223), (14445, 17997)]